URL Encoder/Decoder - Online URL Encode/Decode Tool

When to use

Developers and users often need to quickly encode or decode URL components to ensure proper transmission and avoid errors, but lack a simple, private, and accessible tool.

How to use

1. 1Select the mode: choose 'Encode' or 'Decode' using the radio buttons.
2. 2Choose the method: pick 'encodeURIComponent' or 'encodeURI' from the dropdown.
3. 3Enter your text in the input textarea. If 'Live Convert' is checked, the output updates automatically.
4. 4If needed, click 'Swap' to exchange input and output, or 'Clear' to reset.
5. 5Click 'Copy' to copy the output to your clipboard.

Input & output

Input: text to be encoded or decoded. Output: the converted text, displayed in the output textarea.

Who it's for

Web developers, QA testers, and anyone working with URLs who need a quick and private encoding/decoding tool.

FAQ

What is the difference between encodeURIComponent and encodeURI?

encodeURIComponent encodes all characters except A-Z a-z 0-9 - _ . ! ~ * ' ( ), while encodeURI does not encode reserved characters like ; / ? : @ & = + $ , #.

Is my data sent to a server?

No, all conversions are performed locally in your browser, ensuring your data remains private.

Why does decoding fail?

Decoding fails if the input is not a valid URL-encoded string, such as containing incomplete percent-encoded sequences.

Can I use this tool offline?

Yes, once the page is loaded, it works offline as all processing is done client-side.